Spreader for road surfacing materials



Sept. 11, 1956 Filed April 1'?,- 1955 iuiiul .1....

W. G. MAUCH SPREADER FOR ROAD SURFACING MATERIALS I5 Sheets-Sheet 1INVENTOR.

#g1/Tse G. MA uc-H Arron/vs vs Sept. 1l, 1956 w. G. MAucH SPREADER FORROAD SURFACING MATERIALS Filed April 17, 1955 3 Sheets-Sheet 2 INVENTOR.

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A *TORNA-'YS Sept. 11, 1956 w, G, MAUCH 2,762,276

SPREADER FOR ROAD SURFACING MATERIALS Filed April 17, 1955 3sheets-sheet :5

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IN VEN TOR.

ATTORNEYS United States iPatent 2,762,276 SPREADER FQR ROAD SURFACINGMATERIALS Walter G. Manch, Cornelius, Greg.

Application April 17, '1953, Serial No. 349,401

2 Claims. (Cl. 944-44) This invention relates to an improved wheeledspreader flor asphaltic, cementitious, or other materials used in roadsurfacing operations.

One important object is to provide a spreader of the type stated whichis designed to be drawn by a tractor vehicle such as a truck, withminimum loss of time.

Another object of importance is to provide a spreader as stated which isdesigned as to cause the surfacing materials to be applied and rolledmore closely to curbings, buildings, or other vertical barriers.

Y Another object is to provide a spreader as stated inclnding a hopperhaving at its opposite sides open-bottorned extensions arranged to beadjusted laterally outwardly of the hopper, so as to increase the lengthof the transversely extending discharge slot or opening of the hopper..

Another object is to provide, in said hopper, hinged doors which whenswung outwardly will permit material to flow into Vthe extensions, thedoors serving as deilectors for guiding the material.V

Still another object is to provide, in a spreader as described, rollingmeans mounted upon nthe hopper for vertical adjustment so as to adjustthe hopper to selected elevations above the road surface to be covered,thereby to permit the application of surfacing materials diiering fromone another in respect tothe extent to which they are compressible onthe road surface. v

Still another object is to provide a spreader of the character indicatedabove which is light in weight, portable, simple in construction, andadapted for manufacture from relatively inexpensive parts.

Other objects will appear from the following description, the claimsappended thereto, and from the annexed drawings, in which like referencecharacters designate like parts throughout the several views, andwherein:

Figure l is a side elevational View of a spreader formed in accordancewith the present invention, a truck to which said spreader is attachedbeing illustrated fragmentaril'y and in side elevation;

Figure 2 is a top plan view of the spreader per se, in which portionshave been broken away, the dotted lines indicating positions to whichthe hopper extensions can be adjusted outwardly of the hopper;

Figure 3 is an enlarged, detail Vsectional view on line 3-3 of Figure 2,showing a vertically adjustable connection of a roller support member tothe hopper;

Figure 4 is an enlarged, fragmentary, transverse sectional view on line4-4 of Figure 1, the dotted lines indicating outwardly adjustedpositions of the extensions and hinged deector means; and Y Figure 5 isa sectional view. on line 5 5 of Figure 2.

The illustrated spreader designated generally by the reference numeral.12 comprises a hopper-fully open at its top, to permit material to bereadily transferred from a tractor truck 1G to said hopper. The hopper12 is transversely elongated, rectangular in form and has verticallydisposed side walls 14, having rearwardly declining lower edges betweenwhich extends a correspondingly declining front Wall 16. The decliningfront wall, as will be readily apparent from Figures l and 5, causesmaterial fed into the hopper to be directed rearwardly toward thevertically disposed, transversely extending rear wall 18 of the hopper.The wall 18, like the front Wall 16, is rigid at its opposite ends withthe side walls 14, and as will be noted from Figure 5, the lower endportion of the rear Wall 18 extends downwardly a substantial distancebelow the level of the rear lower edge of the front wall 16, said loweredge of the front wall being spaced forwardly from the rear wall 13.

Rigid with the rear edge of front wall 16 is a depending, verticallydisposed bottom wall extension 20, and between the bottom edges of rearwall 18 and front wall extension 2t) there is defined a transverselyelongated discharge slot 22 extending from one side wall 14 to theother. Road surfacing material within the hopper gravitate through thedischarge slot, throughout the width of the hopper 12, and are applieduniformly to a road surface S to provide a covering C for said surface.

Means is incorporated in the hopper for extending the length ot' thedischarge slot 22, beyond the opposite side walls 14, thereby toincrease the width of the covering C. To this end, in each side wall 14,adjacent the rear wall 18, there is formed a rectangular opening 23normally covered by a hinged door V24. Each door 24 is hinged at itsupper edge to the side wall above the openingw23 for swinging movementabout a horizontal axis between the full line and dotted line positionsshown in Figure 4. When swung outwardly, each door 24 declines outwardlyfrom the related side wall 14, to provide a ideector .for materialflowing through the related opening 23.

Secured to the rear edge of each door 24 is a segmentally shaped wing26, slidably contacting the forward surface of the rear wall 18 andhaving, along its lower edge, an arcuate slot 28 concentric withthe'hinge axis of the door. A pin 30 xed on the rear wall 18 extendsthrough the slot 28, to guide the door 24 in its swinging movement. Whenthe door 24 has been swung to a selected position, a nut threaded uponthe pin 30 Vcan be tightened against the door to clamp the door in theselected position.

Below the doors 24 are box-like extensions 32 which are located adjacentthe slot 22 below the doors 24. Each .extension 32 has `an o pen bottom,throughout its length, and vertically disposed, parallel vfront and rearwalls 34 and 35 formed, along their lower edges, with elongated,longitudinal slots 36. Guide pins 38 extend from the rear wall 18 andfrom the front Wall extension 20. through the slots 36, whereby theextensions 32 are slidably mounted upon the hopper for adjustmentlaterally inwardly and outwardly of the hopper side walls 14, betweenthe full line and dotted l'me positions shown in Figure 4. Theextensions have side walls 33 at their laterally outwardly ends.

When the extensions 32 are slidably adjusted to their extended dottedline positions, they serve to extend the length of the. hopper dischargeopening 22. The doors 24, when swung outwardly, serve to deect roadsurfacing material into the outwardly adjusted extensions.

The means for attaching the spreader to the truck 10 Vincludestransversely spaced pairs of triangular plates 40,

rthey plates of earch pair having Ytransversely aligned,"ver` ticallydisposed slots 42 receiving a pin to which is attached the rear end of achain 44. Chains 44 are attached to the truck in any suitable manner.

Secured to andV depending from the hopper bottom wall 16 near the sidesof the hopper are vertical depending plates 46 having in their loweredges downwardly opening slots'48 receiving axlesvSt) Vto which areattached, .at opposite sides o f the plates, ground wheels '52. The'hopper can,` ofcourse, belifted completely off the sup- -porting wheelassemblies, when not in use.

ItY is preferred that means be j provided upon the :spreader forsupporting-a worker, in a position where `he will be able to observe theflow of material from the hopper and distribute material evenly withinthe hopper. .'IoV this end, platform support brackets 54 are bolted to iillustrtive'of th'e"'principlesY of operation and the means and extend-rearwardly from the lower end portion ofv rear wall 18,- and atransversely extending platform 56 is secured upon said brackets.

VIn trailing relation to the hopper 12 is a roller 58 V whichcan be ofhollow formation, and can be readily ,-manufactured from sheet metalmaterial or the like. Roller 58 is parallel to the discharge slot 22,andV at its -opposite ends, has trunnions .60 journaled in bearings 62disposed below and secured tothe rear ends of rear- Ywardly decliningroller support Yarms 64, secured at their forward elevated'ends to therear hopper wall 18 VVat opposite ends of said rear wall.

The elevated forwardends of the arms 64 are conjnectred to the hopperfor vertical adjustment relative thereto, as shown in Figure 3. Theforward end of each arm 64 is formedwith a threaded opening 66 in whichis engaged a vertical adjustingscrew 68 rotatably mounted at its upperVand lower ends in smooth walled `openings formed in a bracket 70 securedto the rear side of the rear wall 18. YCollars 72, circumposed on andxed to the shank 69 on the upper end of the screw 68, contact the topand bottom surfaces of the upper end 71 ofthe bracket 70, to hold thescrew against vertical movement during rotation thereof. The vupper endof the shank 69Vof each Yscrew 68 is tted with a hand wheel 74 readily.accessible to the worker standing on platform 56, and on rotation ofthe hand wheel,74,'the forward ends of the arms 64 will be .adjustedupwardly or downwardly relative to the hopper, as .may be desired.Secured VfixedlyY at its ends to and extending transversely between Vtherear end portions of thearms 64 vis an angle firon mat support bar'76,which serves alsoto transversely reinforce the roller support assembly.Carried by the ,'bar 76 Yis a longitudinal series of coco mats 78,having f uping contact with the surface'of roller V58, to keep saidroller clean during aY surfacing operation.

Bracing the hopper 12 transversely thereof, and sel cured to the rearYside of the hopper rear wall 18 at the ,lower edge of the rear wall isan angle iron reinforcing bar 8,0. `Secured to the opposite ends of thebar 80 are -pivot brackets, to which the forward ends of threaded rods82 arehorizontally pivoted. Threaded on the rear Vends of said rods 82are turn buckles 89 having threaded engagement, at their rear ends, withrods 86. The rods ".86 are threaded oppositely to the rods 82, and arepivnotally `secured at their rear ends to the roller supporting bearings62 on the lower ends of the arms 64. Y Assuming that it is desired thatthe roller 58 be adjusted Aupwardly from the position thereof shown inFigure 1, it is merely necessary that the turn buckle assembly V.beVextended toa selected extent, and the screws 68 operated toelevatethe'upper ends of theV arms 64.

It is believed apparent that the invention is not necessarily confinedto Vthe specific use or uses thereof .described 1 above, since it may beutilized for any purpose to which it may be suited. Nor is the inventionto bernecessarily limitedtothe specific construction that is illustrated.and described, since such construction is only intended to be presentlydevised to carry out said principles, it being considered that theinvention comprehends any minor` change in construction that may bepermitted within the scope of the appended claims.

What is claimed is:

l. In a spreader for road surfacing material, a hopper having spacedvertical side walls, a rearwardly declining frontwall having a rearedge, said front wall extending between the side walls, a dependingfront wall extension on the said rear edge of thenfront wall having alower edge, and a vertical rear wall extending between said side walls,said rear wall having a lower edge` on a levelwith the lower edge ofsaid front wall extension, said side walls having lower edges on a levelVwith the lower edges of said rear wall and said front wall extension,the space at and between the lower edges of the front wall extension ofthe side walls, and of the rear wall defining a material discharge slot,said side walls having openings reaching upwardly from the lower edgesof the side walls, said openings having upper edges, depending deectorplates Vhaving upper ends hinged horizontallyto the side walls at theupper edges of the openings, said deiiector plates y normally beingsubstantially ilush withV the side walls in closing relation to upperportions of said openings, said plates having lower. edges spacedupwardly from the lower edges of the side walls, said deilector platesbeing arranged to be swung laterally outwardly from their nor-V malpositions to deecting positions, means Yacting between the deectorplates and the hopper for holding the deflector plates in selectedpositions, box-like hopper ex- Ytensions each consisting of spaced frontand-rear walls having inner and Vouterends and anV end wall extendingbetween the outer ends of said front and rear walls, said hopperextensions being positioned endwise through the lower portions of thehopper side wall openings below the deector Yplates between the bottomwall4 extension and the Vrear hopper wall, and-.means embodying guide,pinsV projecting from'said'hopper rear wa-ll and said hopper. frontwall extension and extending slidably through longitudnal slots formedin the front and rearV walls of said extension mounting said extensionson .the hopper for endwise movements in opposite directions from u n-Vextended positions to extended .positions laterallyoutwardly of thehopper side walls, with the deilector plates in deecting positions. Y

2. In a spreader for road surfacing material, a hopper` having spacedvertical side walls, a rearwardly declining front wall having a rearedge, said front wall extending .between the sidewalls, a dependingfront wallextension on the said rear edge of the front wall having alower edge, and a vertical rear wall extending between said side walls,said rear wall having a lower edge on a level with the lower edge'ofsaid front wallrextension, said side walls having lower edgesV on alevel with the lower edges of said rear wall and said front wallVextension, the space at and between the lower edges Vof the front wallextension of the side walls, and of the rear wall defining a materialdischarge slot, said side walls having openings reaching upwardly fromthe lower edges of the side walls, said openings having upper edges,depending deilector plates having upper ends hinged horizontally to theside walls at theV upper edges of the openings, said deilector platesnormally being substantially ilush with the side walls inY closingrelation to upper portions of said openings, said plates .having loweredges spaced upwardly Yfrom the lower. edges of the side walls,.saiddeflector plates being arranged to be swung laterally outwardly fromtheir normal positions to Vdeilecting positions,rmeans acting betweenthe deiiector plates and the hopper for holding the deflector plates inselected positions, box-like hopper extensions each Vconsisting frspacedfront and'rear. walls having inner and outer ends andan end wallextending between the outer ends ofsaid frontand rear'walls, saidhopperextensions being positioned endwise through the lower portions of toextended positions laterally outwardly of the hopper side walls, withthe deector plates in deecting posi- 10 tions, and a surface rollerassembly mounted on and in trailing relation to said hopper rear wall.

